Refactored out the function register_callback

src/screencast/wlr_screencast.c

@@ -35,11 +35,6 @@ static void wlr_frame_buffer_destroy(struct xdpw_screencast_instance *cast) {
 	}
 }
 
-static void register_callback(void *data) {
-	struct xdpw_screencast_instance *cast = data;
-	xdpw_wlr_register_cb(cast);
-}
-
 void xdpw_wlr_frame_free(struct xdpw_screencast_instance *cast) {
 	zwlr_screencopy_frame_v1_destroy(cast->wlr_frame);
 	cast->wlr_frame = NULL;
@@ -59,7 +54,7 @@ void xdpw_wlr_frame_free(struct xdpw_screencast_instance *cast) {
 
 	uint64_t delay_ns = fps_limit_measure_end(&cast->fps_limit, cast->ctx->max_fps);
 	if (delay_ns > 0) {
-		xdpw_add_timer(cast->ctx->state, delay_ns, register_callback, cast);
+		xdpw_add_timer(cast->ctx->state, delay_ns, (xdpw_event_loop_timer_func_t) xdpw_wlr_register_cb, cast);
 	} else {
 		xdpw_wlr_register_cb(cast);
 	}